A new Houston bar is offering its customers not just a relaxed atmosphere with good drinks and food, but a pledge that 100 percent of its profits will be donated to a different local charity or social cause each month.

And patrons can vote for which charity benefits from their Merlots and martinis.

“Where else can you do good with your drinking?” said Tom Burgett, 45, as he sat at the oval-shaped counter at the center of the bar with his wife, Kim, and enjoyed a beer.

The Original OKRA Charity Saloon is one of several bars around the country that are using the business as a way to give back to local communities and also providing people a creative method of being philanthropic. There are similar bars in Washington, D.C., and Austin and another being planned in Portland, Ore.

Houston bar and restaurant owner Bobby Heugel’s group, an Organized Kollaboration on Restaurant Affairs or OKRA, runs the charity saloon. Heugel said the idea was born of a need to highlight the civic exchange that occurs between restaurants and bars and the communities they operate in.

“And so finding a way for your establishment to be part of the community from which you profit from I think is really important,” Heugel said of the group, which is made up of some of the city’s best-known establishments, including Anvil Bar & Refuge, Underbelly and Oxheart.

At the charity saloon — located in a downtown brick building that dates back to the 1880s — whenever customers order a drink or food, they will get one ticket for each item. On each menu is a short description of the four charities being featured that month, said Mike Criss, the bar’s general manager. Customers vote by dropping their tickets into a row of boxes, one for each charity.

Once the bar, which is registered as a nonprofit, pays its operating costs, 100 percent of the remaining profits go to the winning charity. Heugel said the ultimate goal is to donate $10,000 per month.

As they stood at the bar’s counter underneath the striking, curved wooden-barrel vault ceiling, Meagan and James Silk reviewed the list of January’s charities. They included ones that combat childhood obesity, provide services to HIV and AIDS patients, give furniture to needy residents and rescue neglected and abused dogs and cats.